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( t BuSi) 2 (PC 6 H 11 ) 3 : A Propellane‐Like Cyclosilaphosphane with Remarkable Structure
Author(s) -
Driess Matthias,
Gleiter Rolf,
Janoschek Rudolf,
Pritzkow Hans,
Reisgys Michael
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199414841
Subject(s) - propellane , antibonding molecular orbital , crystallography , yield (engineering) , chemistry , physics , stereochemistry , electron , nuclear physics , bicyclic molecule , atomic orbital , thermodynamics
An unusually short SiSi distance of 2.518(3) Å despite an antibonding interaction between these centers and a small endocyclic angle of 67° at phosphorus, these are the surprising structural features of the title compound 1 , which forms by cyclocondensation of t BuSiFCl 2 with CyPHLi in 33% yield. The structure of 1 reflects a tug‐of‐war between the three SiPSi and the six PSiP angles, Cy = cyclohexyl.